Well I got my adapter boards from China and managed to build my first SMT project, a square wave generator for TDR use. And it works! The IC seems to run hot so I used my IR temperature measurement device and it checks out at about 37C, acceptable. I can now drive a square wave at about 3 kHz into 50 Ohms. The rise time isn't very short but I must have not used the best part for the generator. Still, I can do some TDR experimenting as long as the line isn't too short.
Thanks to all for the ideas and encouragement. I didn't use a microscope, mostly just a magnifier. My tiniest soldering iron is a bit large but it did the job.
Bob
On Saturday, August 13, 2016 4:06 PM, Michael Seibel <m.seibel@verizon.net> wrote:
SMD manual assembly / re-rework is easily accomplished wearing surgeons
glasses. Mine are KEELER with prescription lens and fold up 4 diopter
telescopes - for me perfect.
Also have a Nikon w/10 Mp digital camera; used only to document my findings
and eliminate any "arguments". Seldom used.
Mike Seibel
m.seibel@verizon.net
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Well I got my adapter boards from China and managed to build my first SMT project, a square wave generator for TDR use. And it works! The IC seems to run hot so I used my IR temperature measurement device and it checks out at about 37C, acceptable. I can now drive a square wave at about 3 kHz into 50 Ohms. The rise time isn't very short but I must have not used the best part for the generator. Still, I can do some TDR experimenting as long as the line isn't too short.
Thanks to all for the ideas and encouragement. I didn't use a microscope, mostly just a magnifier. My tiniest soldering iron is a bit large but it did the job.
Bob
On Saturday, August 13, 2016 4:06 PM, Michael Seibel <m.seibel@verizon.net> wrote:
SMD manual assembly / re-rework is easily accomplished wearing surgeons
glasses. Mine are KEELER with prescription lens and fold up 4 diopter
telescopes - for me perfect.
Also have a Nikon w/10 Mp digital camera; used only to document my findings
and eliminate any "arguments". Seldom used.
Mike Seibel
m.seibel@verizon.net
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